In each wave companies have come to dominate, but then have failed to become important players in the next one. For example Microsoft were very dominant in PCs, but have so far failed to have a similar role in mobile.

After the lecture someone asked the obvious question: What is the sixth wave?

The sixth wave, came the reply, is computers built into devices, for example houses, appliances and cars. This of course then makes interfaces (like voice recognition) very important.